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Finding the Fourth Proportional to 49,662.75, 74,492.45 and 21,582.80

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Solution

The fourth proportional to 49,662.75, 74,492.45 and 21,582.80 is: 32,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,662.75 : 74,492.45 = 21,582.80 : x
  2. Step 2: Convert to fraction form
    49,662.75/74,492.45 = 21,582.80/x
  3. Step 3: Cross multiply
    49,662.75x = 74,492.45 × 21,582.80
  4. Step 4: Simplify right side
    49,662.75x = 1,607,755,380.96
  5. Step 5: Solve for x
    x = 1,607,755,380.96/49,662.75
  6. Step 6: Final answer
    x = 32,373.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.